"This investigation was conducted in a way to try to convict the man they arrested, but it was not conducted in a way to ensure that the man they arrested was the man who shot Officer Doherty," Smith said. "And he was not."

Defense lawyers said eyewitnesses were tainted by media accounts of the shooting and arrest, that they were never shown a photo lineup and that there was no DNA or fingerprints connecting Webster to the weapon.

But prosecutors said that when Doherty attempted to stop and question Webster, he ran before eventually turning and emptying 14 rounds in Doherty's direction.

"He shoots not to warn, not to wound, but to kill. To kill the cop," said Assistant Attorney General Jeffrey Strelzin. "The cop that was right behind him, about to catch him and maybe send him off to prison."

Several witnesses testified that they saw Webster pull a gun shortly before they heard gunfire. The jury also heard radio communications between Doherty and other officers made during the chase.

In pretrial hearings, Doherty testified that he can positively identify the man who shot him.

Testimony is scheduled to continue Wednesday morning.

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